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LEED BD+C: Homes | v3 - LEED 2008

Environmentally preferable products

MRc2 | Possible 8 points

Intent

Increase demand for environmentally preferable products and products or building components that are extracted, processed, and manufactured within the region.

Requirements

Prerequisites

2.1 FSC-Certified Tropical Wood. Meet the following two requirements, as applicable:

  1. Provide all wood product suppliers with a notice (see Figure 1, below) containing all of the following elements:
    1. a statement that the builder’s preference is to purchase products containing tropical wood only if it is FSC-certified;
    2. a request for the country of manufacture of each product supplied;
    3. and

    4. a request for a list of FSC-certified tropical wood products the vendor can supply.
  2. If tropical wood is intentionally used (i.e., specified in purchasing documents), use only FSC-certified tropical wood products. Reused or reclaimed materials are exempt.

Note: A species of wood is considered tropical for the purposes of this prerequisite if it is grown in a country that lies between the Tropics of Cancer and Capricorn.

Credits

2.2 Environmentally preferable products (0.5 point each, maximum 8 points). Use building component materials that meet one or more of the criteria below. Except as noted in Table 1, a material must make up 90% of the component, by weight or volume. A single component that meets each criterion (i.e., environmentally preferable, low emissions, and local sourcing) can earn points for each.

a) Environmentally preferable products (0.5 point per component). Use products that meet the specifications in Table 1.
Note: Recycled content products must contain a minimum of 25% postconsumer recycled content, except as noted in Table 1. Postindustrial (preconsumer) recycled content must be counted at half the rate of postconsumer content.

AND/OR

b) Low emissions (0.5 point per component). Use products that meet the emissions specifications in Table 1.

AND/OR

c) Local production (0.5 point per component). Use products that were extracted, processed, and manufactured within 500 miles of the home.

Table 1. Environmentally Preferable Products

Assembly Component EPP specifications
(0.5 point per component)
Emission specifications
(0.5 point per component)
Local production
(0.5 point per component)
Exterior wall Framing / wall structure Concrete wall structure: Use 30% fly ash or slag
wood frame: FSC-certified or reclaimed or finger joint studs
N/A Eligible
Exterior wall Siding or masonry Recycled content, reclaimed, or FSC-certified N/A Eligible
Floor Flooring
(45% of total floor area)
Linoleum, cork, bamboo, FSC-certified or reclaimed wood,
sealed concrete, recycled-content flooring, or combination
Carpet & pad: all carpet & pad complies with Carpet & Rug
Institute Green Label Plus program
Hard flooring: automatic 1/2 point for 100% hard surface
flooring
Hard flooring: additional 1/2 point for using a product that is
SCS FloorScore certified
Eligible
Floor Flooring
(90% of total floor area)
Meet specifications above to receive additional 0.5 point. Eligible
(additional 0.5 point)
Floor Framing FSC-certified or reclaimed N/A Eligible
Foundation Aggregate N/A N/A Eligible
Foundation Cement Use 30% fly ash or slag N/A Eligible
Interior wall Framing FSC-certified or reclaimed N/A Eligible
Interior walls AND ceilings Gypsum board N/A N/A Eligible
Interior walls AND ceilings AND millwork Paints and coatings Recycled paint that meets Green Seal standard GS-43 Use products that comply with all applicable standards in
Table 25.
Not eligible
Landscape Decking or patio material Recycled content, FSC-certified, or reclaimed N/A Eligible
Other Cabinets Recycled content, FSC-certified, or reclaimed
AND composite materials must contain no added urea-formaldehyde resins
N/A Eligible
Other Counters
(kitchens and bathrooms)
Recycled content, FSC-certified, or reclaimed
AND composite materials must contain no added urea-formaldehyde resins
N/A Eligible
Other Doors (not including garage or insulated doors) Recycled content, FSC-certified, or reclaimed N/A Eligible
Other Trim Recycled content, FSC-certified, or reclaimed
AND composite materials must contain no added urea-formaldehyde resins
N/A Eligible
Other Adhesives and sealants N/A Use products that comply with all applicable standards in
Table 26.
Not eligible
Other Window framing Recycled content, FSC-certified, or reclaimed N/A Eligible
Roof Framing FSC-certified N/A Eligible
Roof Roofing Recycled content N/A Eligible
Roof AND floor AND wall Insulation Recycled content of 20% or more Comply with California “Practice for Testing of VOCs from
Building Materials Using Small Chambers”:
www.dhs.ca.gov/ehlb/IAQ/VOCS/Practice.htm
Eligible
Roof, floor, wall (2 of 3) Sheathing Recycled content, FSC-certified, or reclaimed N/A Eligible

Figure 1. Example Notice to Wood Products Suppliers
Notice to Vendors: [The company] prefers to purchase products that contain tropical wood only if they are certified according to the guidelines of the Forest Stewardship Council (FSC). Please provide the country of manufacture of each product you expect to supply to us. Also please provide a list of FSC-certified products you can supply.
Table 2. Standards for Environmentally Preferable Paints and Coatings

Component Applicable standard
(VOC content)
Reference
Architectural paints, coatings and primers applied to interior walls and ceilings Flats: 50 g/L
Nonflats: 150 g/L
Green Seal Standard GS-11, Paints, 1st Edition, May 20, 1993
Anticorrosive and antirust paints applied to interior ferrous metal substrates 250 g/L Green Seal Standard GC-03, Anti-Corrosive Paints, 2nd Edition, January 7, 1997
Clear wood finishes Varnish: 350 g/L
Lacquer: 550 g/L
South Coast Air Quality Management District Rule 1113, Architectural Coatings
 
 
Floor coatings 100 g/L
Sealers Waterproofing: 250 g/L
Sanding: 275 g/L
All others: 200 g/L
Shellacs Clear: 730 g/L
Pigmented: 550 g/L
Stains 250 g/L

Table 3. Standards for Low-Emissions Adhesives and Sealants (meet South Coast Air Quality Management District Rule #1168)

  Applicable standard
(VOC content, g/L less water)
Architectural applications
Indoor carpet adhesives 50
Carpet pad adhesives 50
Wood flooring adhesives 100
Rubber floor adhesives 60
Subfloor adhesives 50
VCT and asphalt adhesives 50
Drywall and panel adhesives 50
Cove base adhesives 50
Multipurpose construction adhesives 70
Structural glazing adhesives 100
Specialty applications
PVC welding 510
CPVC welding 490
ABS welding 325
Plastic cement welding 250
Adhesive primer for plastic 550
Contact adhesive 80
Special-purpose contact adhesive 250
Structural wood member adhesive 140
Sheet-applied rubber lining operations 850
Top and trim adhesive 250
Substrate-specific applications
Metal to metal 30
Plastic foams 50
Porous materials (except wood) 50
Wood 30
Fiberglass 80
Sealants
Architectural 250
Nonmembrane roof 300
Roadway 250
Single-ply roof membrane 450
Other 420
Sealant primers
Architectural nonporous 250
Architectural porous 775
Other 750

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